Carbureting device for explosive-engines.



No. 711.9,254L` PATBNTBD MAY 26, 1903. MJF. BATES.

GARBURETING DEVICE FOR-EXPLOSIVE ENGINES. x

. AAPPLHLIJION 'runnin 4, 1901'.

im MODEL.

UNITED STAT-.s

PATENT Patented May 26, 1902.Y

OFFICE.

MADISON F. BATES, OF'LANSING, MICHIGAN.

CARBURYETIKNG oEv'lrcE FOR EXPLoslv'g-ENGl-NEs.

:'EEFICATIQN formingpart of Letters Patent No. 729,254, dated May 26,1903. Application nea my 4, 1901. sesamo. 58,688. (No modas to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had t the accompanying drawing, and to the figuresof reference marked thereon, which forms a part of this specification.

This invention relates to a carbureting device for explosive-engines;and it consists in the construction and arrangement of parts hereinafterfully set forth, and pointed out particularly in the claims.

The object of the invention is to provide simple and efficient meanslautomatically actuated for delivering a completemixture of air andgasolene-Vapor to the combustionchamber of an explosive-engine. A

The above object is attained by the device illustrated in theaccompanying drawing, in

which there is shown a sectional view of my improved carbureting deviceconnected Vwith the cylinder or combustion-chamber of an engine, partsof said cylinder being broken away and the piston within said cylindershowing only in dotted lines, as such parts are merely incidental to theoperation of my device.

Referring to the characters of reference, 1 represents the body of thecarbureter, which may be of any suitable formation and which is closedat the top by a screw-cap 2. Depending centrally from said cap is aguidingtube 3, adapted to receive the valve-stem 4 of the valve 5,whereby said Valve is directed inits movement. The valve-chamber 6,controlled by the air-valve 5, communicates with the engine-cylinder orcombustion-chamber 7 by means of the connecting pipe-section 8, throughwhich the carbureted air is delivered to the engine-cylinder- Theair-admission port 9 opens through the bottom of the carbureter-body andterminates in a carbureting-chamber 10, whose upper end is normallyclosed by the valve 5.

The gasolene-admission port 11 communicates, with the gaso1ene-supplytank (not shown) and which is located at such an elevation as to causeVthe gasolene to flow into said admission-port by gravity. Controllingsaid admission-port is a needle-valve 12, Whosestem 13 extends throughthe wall of the carbureter and carries a knurled disk 14, through themedium of which the Valve may be operated.

Projecting vertically intothe carburetingchamber 10 is a tubularextension or standpipe 15, the opening 16 of which communicates with thevalve-controlled,gasolene-admission port 11, whereby said stand-pipebecomes filled with gasolene upon the opening ofthe valve 12.

' The stem 4 of the valve 5 is hollow, and

seated therein is a depending valve 17, adapted to seat upon the upperend of the standpipe 15 and close the opening therethrough. The Valve 17is adapted to reciprocate vertically in the stem of the valve 5 and isheld in place by a coiled spring 18, which bears upon the valve 17 andis confined by the screw-plug 19, which closes the upper end of thevalve-stem 4. The annular collar or head 20 upon the upper end of thevalve 17 prevents it from descending too far through the stem of thevalve 5.

Bearing upon the valve 5 is a coiled spring 21, which surrounds theguiding-tube 3 and isvconfined by the cap 2.

In the operation of this device when it is desired to admit a charge ofexplosive mixture to the engine the vacuum created in theengine-cylinder by a forward movement of the piston 22 causes a rush ofsaid air through the air-admission port 9, which raises the valve 5 fromits seat against the action of the spring 21 and at the same timecarries the valve 17 from its seat on the upper end of the stand-pipe15, allowing the Vgasolene to flow from-said stand-pipe, which is takenup and'mixed with the inwardly-flowing current of the air, forming anexplosive mixture which enters the engine-cylinder through theconnecting-pipe 8. After the engine has received a charge the spring 2lcloses the airvalve 5 and allows the gasolene-valve 17 to return to itsseat, thereby stopping the flow of gasolene through the opening 16. Itwill be observed that the gasolene-valve 17 has a vertical movementindependent of the valve 5. The arrangement of said parts is such thatthe air-valve 5 will leave its seat slightly in advance of thegasolene-valve 17 to induce a flow of air through thecarbureting-chamber before the gasolene is discharged from thestand-pipe, so that the gasolene maybe taken up and vaporized as it Howsfrom the standpipe upon the raising of the valve 17. From the fact thatthe gasolene-valve 17 is the last to leave its seat it will be the firstto reach its seat upon a return of the valve 5, so that the discharge ofthe gasolene is cut off before the valve 5 is closed.

Surrounding the stand-pipe within the carbureting-chamber is a drip-pan23, which serves to catch the surplus gasolene not taken into theengine.

It will be observed that the operation of this carbureter is entirelyautomatic and that by means of the needle-valve l2 the quantity ofgasolene which Hows to the carbureting-chamber may be regulated toinsure a perfect mixture thereof with the iniowing air and a perfectcombustion of the charge in the engine-cylinder.

Having thus fully set forth my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In a carbureter, the combination of a suitable case having anair-intake opening, a gasolene -intake port, a hollow transverse membercrossing the air-intake port and communicating with the oil-admissionport, a valve in said member for controlling the iiow of oil, astand-pipe projecting vertically from said transverse member having acentral opening therethrough which communicates with the oil-controllingvalve, a drip-pan around the upperendofsaid stand-pipe adapted to catchthe overflow of gasolene therefrom, an air-intake valve adapted tocontrol the iniiowing air, said valve having a hollow stem, agasolene-valve located in the hollow stem of the air-valve, and adaptedto seat over the end of the stand-pipe, said gasolene-valve having anenlarged head which prevents it from slipping through the stem of theairvalve, and a spring within the stem of the air valve pressingdownwardly upon said gaso- Iene-valve.

z. In a carbureter, the combination of a suitable case having anair-intake and gasolene-admission port, a stand-pipe standing centrallywithin the air-intake and communicating with said admission-port, anair-valve to control the passage of carbureted air, said valve beinglocated above the stand-pipe and provided with a hollow stem, agasolene-valve located in the stem of the air-valve, and projectingthrough the face thereof, the lowei end of said gasolene-valve beingadapted to seat in the end of the stand-pipe, and the upper end of saidvalve having an enlarged head which limits the downward movementthereof, a spring in the hollow stem of the air-valve resting upon thehead of the gasolene-valve,and a screw-plug in the stem of the air-valvefor confining said spring in place.

3. In a carbureter, the combination of a suitable case having anair-intake opening and a gasolene-port, a stand-pipe located centrallywithin the air-intake port com municating with the gasolene -port, anair-valve closing the upper end of the air-intake having a verticalstem, said stem being hollow, the upper portion of said opening in saidstem being of greater diametery than the lower portion, a gasolene-valvehaving a reduced body adapted to pass through the lower portion of thehollow stem of the air-valve and to seat in the end of the stand-pipe,said gasolenevalve having at its upper end an enlarged head which fillsthe larger upper portion of said hollow stem, and limits the downwardmovement of the valve and spring within the enlarged upper portion ofthe hollow valvestem bearing upon the head of said gasolenevalve.

In testimony whereof I sign this specification in the presence of twowitnesses.

MADISON F. BATES.

Witnesses:

JNO. H. CHASE, JAMES P. EDMoNDs.

